ABAP Select data from SAP table /SAPSRM/TT_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPSRM/TT_DATA table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to /SAPSRM/TT_DATA. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the /SAPSRM/TT_DATA table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_/SAPSRM/TT_DATA TYPE STANDARD TABLE OF /SAPSRM/TT_DATA,
      WA_/SAPSRM/TT_DATA TYPE /SAPSRM/TT_DATA,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: </SAPSRM/TT_DATA> TYPE /SAPSRM/TT_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SAPSRM/TT_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPSRM/TT_DATA
  INTO TABLE IT_/SAPSRM/TT_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPSRM/TT_DATA
*  INTO TABLE @DATA(IT_/SAPSRM/TT_DATA2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_/SAPSRM/TT_DATA INDEX 1 INTO DATA(WA_/SAPSRM/TT_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPSRM/TT_DATA ASSIGNING </SAPSRM/TT_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPSRM/TT_DATA>-CLIENT = 1.
</SAPSRM/TT_DATA>-BUS = 1.
</SAPSRM/TT_DATA>-VARIANTE = 1.
</SAPSRM/TT_DATA>-POS = 1.
</SAPSRM/TT_DATA>-PTYPE = 1.

ENDLOOP.

LOOP AT IT_/SAPSRM/TT_DATA INTO WA_/SAPSRM/TT_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPSRM/TT_DATA-BESCHREIBUNG, sy-vline,
  WA_/SAPSRM/TT_DATA-KATEGORIE, sy-vline,
  WA_/SAPSRM/TT_DATA-WARE_LEIST, sy-vline,
  WA_/SAPSRM/TT_DATA-FI_BACKEND, sy-vline,
  WA_/SAPSRM/TT_DATA-WERK, sy-vline,
  WA_/SAPSRM/TT_DATA-LIEFERANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPSRM/TT_DATA you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_/SAPSRM/TT_DATA TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_/SAPSRM/TT_DATA INTO WA_/SAPSRM/TT_DATA.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field FI_BACKEND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/TT_DATA-FI_BACKEND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/TT_DATA-FI_BACKEND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIEFERANT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/TT_DATA-LIEFERANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/TT_DATA-LIEFERANT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PRID1, internal->external for field PRODUKT
CALL FUNCTION 'CONVERSION_EXIT_PRID1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/TT_DATA-PRODUKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/TT_DATA-PRODUKT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/TT_DATA-KONTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/TT_DATA-KONTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPSRM/TT_DATA-CONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPSRM/TT_DATA-CONTRACT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/SAPSRM/TT_DATA_STR, 
CLIENT TYPE STRING,
BUS TYPE STRING,
VARIANTE TYPE STRING,
POS TYPE STRING,
PTYPE TYPE STRING,
BESCHREIBUNG TYPE STRING,
KATEGORIE TYPE STRING,
WARE_LEIST TYPE STRING,
FI_BACKEND TYPE STRING,
WERK TYPE STRING,
LIEFERANT TYPE STRING,
DP_EP TYPE STRING,
SCENARIO TYPE STRING,
PRODUKT TYPE STRING,
AC_CAT TYPE STRING,
KST TYPE STRING,
KST2 TYPE STRING,
KONTO TYPE STRING,
BUK TYPE STRING,
BE_EKORG TYPE STRING,
BE_EKGR TYPE STRING,
CURRENCY TYPE STRING,
PREIS TYPE STRING,
LIMIT TYPE STRING,
POS_VAR TYPE STRING,
POS_HL TYPE STRING,
PS_IPT TYPE STRING,
ANFORDERER TYPE STRING,
CONTRACT TYPE STRING,
CONTRACT_ITEM TYPE STRING,
MERKEN TYPE STRING,
AUTO_QTE TYPE STRING,
AUTO_CF TYPE STRING,
AUTO_IV TYPE STRING,
CATALOGID TYPE STRING,
CATALOGITEM TYPE STRING,
PARTNER_PROD TYPE STRING,
PD TYPE STRING,
DIS_POS_VAR TYPE STRING,
ITM_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPSRM/TT_DATA_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_/SAPSRM/TT_DATA_STR-CLIENT sy-vline 
WA_/SAPSRM/TT_DATA_STR-BUS sy-vline 
WA_/SAPSRM/TT_DATA_STR-VARIANTE sy-vline 
WA_/SAPSRM/TT_DATA_STR-POS sy-vline 
WA_/SAPSRM/TT_DATA_STR-PTYPE sy-vline 
WA_/SAPSRM/TT_DATA_STR-BESCHREIBUNG sy-vline 
WA_/SAPSRM/TT_DATA_STR-KATEGORIE sy-vline 
WA_/SAPSRM/TT_DATA_STR-WARE_LEIST sy-vline 
WA_/SAPSRM/TT_DATA_STR-FI_BACKEND sy-vline 
WA_/SAPSRM/TT_DATA_STR-WERK sy-vline 
WA_/SAPSRM/TT_DATA_STR-LIEFERANT sy-vline 
WA_/SAPSRM/TT_DATA_STR-DP_EP sy-vline 
WA_/SAPSRM/TT_DATA_STR-SCENARIO sy-vline 
WA_/SAPSRM/TT_DATA_STR-PRODUKT sy-vline 
WA_/SAPSRM/TT_DATA_STR-AC_CAT sy-vline 
WA_/SAPSRM/TT_DATA_STR-KST sy-vline 
WA_/SAPSRM/TT_DATA_STR-KST2 sy-vline 
WA_/SAPSRM/TT_DATA_STR-KONTO sy-vline 
WA_/SAPSRM/TT_DATA_STR-BUK sy-vline 
WA_/SAPSRM/TT_DATA_STR-BE_EKORG sy-vline 
WA_/SAPSRM/TT_DATA_STR-BE_EKGR sy-vline 
WA_/SAPSRM/TT_DATA_STR-CURRENCY sy-vline 
WA_/SAPSRM/TT_DATA_STR-PREIS sy-vline 
WA_/SAPSRM/TT_DATA_STR-LIMIT sy-vline 
WA_/SAPSRM/TT_DATA_STR-POS_VAR sy-vline 
WA_/SAPSRM/TT_DATA_STR-POS_HL sy-vline 
WA_/SAPSRM/TT_DATA_STR-PS_IPT sy-vline 
WA_/SAPSRM/TT_DATA_STR-ANFORDERER sy-vline 
WA_/SAPSRM/TT_DATA_STR-CONTRACT sy-vline 
WA_/SAPSRM/TT_DATA_STR-CONTRACT_ITEM sy-vline 
WA_/SAPSRM/TT_DATA_STR-MERKEN sy-vline 
WA_/SAPSRM/TT_DATA_STR-AUTO_QTE sy-vline 
WA_/SAPSRM/TT_DATA_STR-AUTO_CF sy-vline 
WA_/SAPSRM/TT_DATA_STR-AUTO_IV sy-vline 
WA_/SAPSRM/TT_DATA_STR-CATALOGID sy-vline 
WA_/SAPSRM/TT_DATA_STR-CATALOGITEM sy-vline 
WA_/SAPSRM/TT_DATA_STR-PARTNER_PROD sy-vline 
WA_/SAPSRM/TT_DATA_STR-PD sy-vline 
WA_/SAPSRM/TT_DATA_STR-DIS_POS_VAR sy-vline 
WA_/SAPSRM/TT_DATA_STR-ITM_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.